The drug releasing curve of the multilayer film loading drug indicates that the drug releasing mode is diffusion and releasing period is about 45 days.

该载药生物活性多层膜的药物释放曲线表明，该含药多层膜系统的药物释放方式为扩散方式，释放周期是45天左右。

youdao

Objective To understand the mental state of medical college student during the period of SARS diffusion.

前言： 目的了解“非典”流行期间大学生的心理状态。

youdao

For one thing, the diffusion of knowledge in ancient India was accomplished by word-of-mouth for quite a long period of time before written modes of communication were adopted.

首先，古印度的理念传承在手写被采用前的很长的历史时期中是通过口述来完成的。

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Permission denied, he said, by Mexico City, because of Article 41, a provision of the Mexican constitution that forbids the diffusion of government propaganda during an election-campaign period.

NEWYORKER: The Kingpins